Summary of Voynich Day presentation on Line Patterns

[nablator]

Scribe 1 in Herbal A really dislikes q-q vertical pairs despite loving q as a Line Start initial.  Scribe 2 in Balneological also  shows a distaste for q-q.  Both show a  fondness for q-ch and q-sh, despite ch and sh being averse to Line Starts.

There is also no ch-ch vertical pair anywhere in paragraphs: a rare rule without any exception! Not too surprising however because as you said ch is averse to Line Starts so there would be around 4 if paragraph lines were randomly shuffled.

3 c-c vertical pairs, all with ch and a benched gallows glyph (not real pairs I guess):
<f76v.10,+P0>    cphdor...
<f76v.11,+P0>    cheor...

<f106v.43,+P0>    chedy...
<f106v.44,+P0>    cthey...

<f116r.28,+P0>    cheol...
<f116r.29,+P0>    cthan...